Morrissey has cancelled six concerts after being diagnosed with a bleeding ulcer. The singer "is expected to make a full recovery", resuming his US tour on 9 February.

On Friday, Morrissey checked himself into Beaumont hospital, in the Detroit suburb of Royal Oak. The former Smiths frontman was initially thought to be suffering from a bladder infection. "He is undergoing tests," said his spokeswoman, Lauren Papapietro. But the final diagnosis was much more serious: a bleeding ulcer, which can often require surgery.

Morrissey has now called off six shows, including gigs in Nashville and Atlanta. His spokeswoman says they will be rescheduled. "Morrissey apologises greatly for any and all inconvenience and looks forward to continuing his US tour," she said in a statement. His next scheduled date, in Las Vegas, is not for almost two weeks.

This is hardly the first setback to Morrissey's 2012-13 US tour. In October, the singer postponed 26 shows so that he could fly home to England and attend to his ailing mother. Although the tour resumed this month, three concerts had already been nixed, last week, due to illness among Morrissey's bandmates.